1 definition by PandOEuropeanFerries

Used to refer to a Friends Girl Friend, that has caused your friend to irreversibly change, they may never come out any more, drasticly change their music taste :O or even turn them into an emasculated bitch, who no longer has any thought of their own, and is forced to drink Bitch Drinks

It is derived from when a strapping young manly lad, into hip-hop, explosions and hard liquor, met a lass, this crazy woman cast a spell on said man, and now he leads a life of seculsion trapped in his room, listening to "soft rock" sipping on WKD's.Until he hears the Mighty Hippo Roar, and he will scurry off and clean her pipes! leaving his man dem standing around wondering why hes not comin out drinking.

Callum : Sorry Guys im staying in tonight, me and Girlfriend are staying in and straightening my hair.
Smacs : OMG!!! your girlfriend is such a millie!
Callum : How did you know her name?!?!?
by PandOEuropeanFerries August 6, 2007
Get the Millie mug.